Drier



Feb. 1; 1938. 1 TE 2,106,9i5

. DRIER Filed July 1, 1935 2 Sheets-Sheet l INVENTOR. James P. Mar/e/ ATTORNEY.

Feb. 1, 1938.

I J. P. MARTEL DRIER Filed July 1, 1955 2 Sheets-Sheei 2 Z/YM/ INVENTOR. Jame;- p. Mar/e/ %3'9f4zW ATTORNEY.

nosed Feb. 1, 193a 2,106,915

UNITED STATES PATENT orrlce DRIER 7 James P. Martel, Evanston, 111., assignor to Olive United Filters Incorporated, San Francisco, Calih, a corporation of Nevada Application July 1, 1935, Serial No. 29,276

Claims. (C1. 34-12) This invention relates to driers and in parspaced guide rails 8, supported by the vertical ticular to a continuous drier wherein the mateframe members 2 and by additional superstrucrial to be dried is carried on an endless supture as indicated in Figure 1. The material to port and during the course of the drying operabe dried is fed in a wet condition to the endless 5 tion is turned over by means of a rabbling device. conveyor 5 by means of a hopper 9, supported 5 In general the object of my invention is the above the endless conveyor by means of suitable provision of a drying chamber through which a superstructure. Secured to the superstructure at bed of discrete particles to be dried is passed, the opposite end of the drier is a hopper H into and which is provided with a plurality of spaced which the dried material is discharged. Mounted discs which serve to turn over the particles formintermediate the ends of the upper compartment 10 ing the bed, and thereby present new surfaces of the heating chamber l and between the lateral to the drying medium. walls l2 of the chamber, is a shaft l3. This More specifically the object of the invention shaft may be conveniently journaled in bearings is the provision of a rabbling device comprising ll carried by the lateral walls l2, and is designed 1 two sets of discs mounted on a shaft, the memto be driven by means of a pulley l5 secured to bers of each t being parallel nddisp s d lnterone r its ends and which in turn may be driven mediate the members of the other set, the discs by means of a motor Ii carried by the superof one set being disposed at an angle with resp'e'ct structure of the device as shown in Figure 1. to the discs of the other set. Since the drier per se including the endless congo Th i v t n possesses Other dvantageous veyor and pallet construction is well known to features, some of which With the foregoing, will the industry the details of its construction need be set forth at length in the following de'script b i tion where that form of the invention which has As shown in Figure 3 t haft l3 h b been selected for illustration in the drawings provided with two Sets f spaced discs The discs accmnllanymg and fuming Part the Pres" ll constituting the members of one set are each 25 cut specification is outlined in full. In said drawperpendicular with the g; n whfle discs ingsone of the invent-mu is shown but it l8 constituting the members of the other set are is to be understood that it is not limited to such an parallel with one another but are disposed 7 form, since the invention as set forth in the at an angle f substantially with respect to 0 claims may be emmmed in a a the shaft l3. It is to be noted that the discs n 80 Referring to the drawings: fie intermediate the discs Figure 1 is a diagrammatic side elevation of In Figure 4 two Sets of discs have again been an endless drier embodying the (Meets of my shown. The discs l9 constituting the members invention.

of one set lie intermediate the discs 2| constitutof??? 2 is a sectmn taken on T' line 2-2 ing the members of the other set, and the discs 35 of both sets are disposed at an angle of substantially 80 to the shaft I! but at opposite pitches. In the modification shown in Figure 5 the discs 40 with respect m an endless carrier 22 and 23 are secured to the shaft I: at right an- 40 figure 4 is an end elevation Showing a mod1 gles thereto, while thediscsfl are all parallel with flcation of the rabbling device as shown in Figeach other and secured to the Shaft at an we angle of substantially 80 thereto.

Figure 5 is an end elevation of still another In the operation of the device the wet or moist modified form of rabbling device. material to be dried, Such as f r example, coal. 45 Referring particularly to Figure 1, m invenis fed to the endless conveyor 5 by means of tion contemplates a drying chamber I supported the hopper During Its P e gh he by vertical frame members 2, and provided with drying Chamber it is Subjected to the drying air intakes 3, and air outlets l. Passing through action of hot air entering the chamber by means the heating chamber l and dividing it into upper of the intakes 3 and passing downwardly through 50 and lower compartments is an endless conveyor the material to be dried and then out through no 5 comprising a plurality of pallets 8, having the outlets 4. During the passage of the mateforaminous bottoms as clearly shown in Fig. 2. rial beneath the rabbling device the discs cut The pallets are vprovided with flanged wheels I through the bed of material with the result that adapted to travel on a track formed by a pair of the individual particles forming the bed are 55 1 Figure 3 is an enlarged end elevation of one form of rabbiing device shown in its operative V the action of the airpassing throughthe bed.

' preferable to the arrangement shown in Figure As the result of actual tests madewith this type of equipment, it has been found that the arrangement of discs as shown in Figure 4 is 3, and that the emt shown in Figure 8 is preferable to th arrangement shown in Figure 5. Inthearra ement showninl'lgure! the particles forming the bed of material are turned over without crushing the individual particles and without forcing them into and injuring the. supporting screen. In the arrangement shown in Figure 3-there is inclined to be a slight crushing. of the particles and in the arrangement shown in Figure 5 this action is even more pronounced, although in both of the latter modificationsthere is no tendency to force the material into the supporting screen.

I claim:

- 1. In a 'drier comprising a traveling support adapted to carry a bed of material: a rotatable shaft mounted above said support; discs mounted on said shaft at an angle therewith; the shaft anddiscs beingso disposedwithrespecttothe support that-thelower peripheries of the discs will rotate through the material carried by the support as the material passes beneath the discs; and means forpositively driving said shaft.

. 2. In a drier comprising a traveling support adapted tocarry a bed ofmaterial: a rotatable shaft mounted above said support discs mounted on said shaft at an angle with said support, the

shaftanddiscs to the support that the lower peripherles of the discs will rotate through the material carried by the support as the material passes beneath the discs; and means for positively driving said shaft.

-3.In-adrier comprisinga travel ing supportadaptedtocarryabedof material: arotatable shaft mounted above said support; two sets of spaced discs mounted on said shaft in such'a aroaa s sodisposedwithrespect' manner that the discs of each set are parallel and lie intermediate the discs of the other set and that the discs of one set make an. angle with the discs of the other set, the shaft and discs being so disposed with respect to'the support that the lower peripheries of the-discs will rotate through the material can-led by the support as the material'passes beneath the discs; and means for positively driving said shaft.

4. A drier comprising a substantially sealed chamber; a foraminous -support arranged to travel through and divide said chamber into upper and lower compartments; an air intake communicating with one of said compartments and an air outlet with the other; a shaft disposed within said upper compartment parallel to the foraminous support; discs mounted on said shaft at an angle thereto, the shaft and discs being so disposed with respect to the supportthat the lower peripheries of the discs will rotate through the material carried by the support as the material passes beneath the dmcs; and means for positively driving said shaft.

5. A drier comprising a substantially air tight chamber; a -foraminous support arranged to travelthrough and divide said chamber into (upper and lower compartments; an air intake ,communicating with one of said compartments an}! an air outlet with the other of said com-.

paftments; ashaft dispoud within. said upper compartment parallel to the foraminous support; two setsof spaced discs mounted on said shaft inisuch apianner that the discs of each set are parallel and lie intermediate the discs of the other set and that the discs of one set make an angle with the discs of the other set, the shaft and discs being so disposed with respect to the support that the lower peripheries of the discs will rotate through the material carried by thesupport as the material passes beneath the Jams P; mm 

